Now a kilo is 10 Liang, and a kilo is a specific unit of measurement in China. Among the ancient units of weight in China, 30 kilos is a jun; Ten guineas weigh one baht, twenty-four baht weighs one or two, sixteen pounds and one catty, and 1 catty equals 16, so there is an idiom "half a catty and eight ounces", which means neck and neck.

Metric system:

1 kg = 10 Liang = 100 money

1 money = 5g

City system: 1 Jin = 16 Liang = 160 Qian.

There is no "Jin" in the international standard unit of extended information, which is a unit in China.

Secondly, units such as "Jin" and "kg" are obviously physical units of weight, but by no means units of mass.

Once again, from the perspective of law and life, China's laws clearly stipulate that units such as "Jin" and "kg" can be used as quality units in various occasions, and quality = weight, which is legally equivalent and has legal effect.

References:

Baidu Encyclopedia Entry-Weight Unit